Open Windows and Doors is a locally-owned business supplying and installing premi-

um aluminium window systems throughout Western Australia.

As a licensed fabricator of Vantage and Elevate aluminium windows, we offer a com-

plete range of architecturally-designed commercial and residential products.

We boast being one of the most experienced team in the industry. We are dedicated

to providing a quality product with superior customer service.

Open Windows & Doors is an ACCREDITED MEMBER of the Australian Windows Asso-

ciation (AWA) which means: 1. Our products are manufactured Australian Standards

(AS 2047 and AS 1288). 2. Products must be covered by a 6-year guarantee (we offer a

10 year guarantee). 3. We participate in the AWA Accreditation Program and are AU-

DITED by NATA accredited third party experts.

Builders can rest assured that all our systems meet and exceed the strict requirements

of the Building Codes of Australia.

Feel free to phone, drop us a line or just call into our office — our doors (and win-

dows) are Open.

Who We Are Open Windows and Doors Pty. Ltd.

74 Mordaunt Circuit

Canning Vale WA 6155

Phone: 1300 180 280

Fax: 08 9463 6122

Mobile: 0424 458 955

quotes@open-windows.com.au

www.open-windows.com.au

*Go Green with Open Windows to get premium double-glazed windows

for only 50%* more than single-glazing

*Double-glazing isn’t just about thermal control—it can also insulate

your home from the intrusion of outside noise

*For ideal thermal performance, include a layer of low-e glass in your

double-glazed units

*Reduce your total building cost by double-glazing only in key areas.

Our single and double-glazed windows can be combined as required—

they are designed for consistent appearance and style.

*Consider our exclusive ThermalHEART thermally-broken range for the

ultimate in aluminium window performance

Last Words On Double-Glazing...

*All values given are estimates only. Actual prices will vary according to product selection and specific house design.

Why Pay The Earth For

Double-Glazing?

OPEN WINDOWS AND DOORS PTY. LTD.

Inside this issue

Which windows should I double- glaze? ..........................................2

What about Low-E glass? ............2

Thermally-broken frames ...........3

uPVC vs. Aluminium ....................3

About Open Windows .................4

Questions answered

How expensive is it to have energy efficient windows in my home?

Cost is an issue—how do I fit double-glazing into my budget?

Cost is NOT an issue—how do I get the best performance from my windows?

It’s hard to do your part for the environment with double-glazed windows up to

three times the price of standard glazing.

Go Green with Open Windows

And reduce your carbon footprint with premium double-glazed aluminium

windows for only 50%* more than single-glazing.

At Open Windows we offer an extensive range of residential and commercial

windows architecturally designed to suit Australian conditions. Single and

double-glazed options can be combined as required with complete aesthetic

consistency.

Double-glaze your whole home or just key areas—there’s a choice for every

budget!

What’s All the Fuss About Double-Glazing?

Double-glazed windows are the standard in America and Europe and with the

introduction of the 6 –star energy rating system, they’re becoming essential in

Australia. After all, your building isn’t truly insulated if your windows are leaking

heat and cold.

Double-glazing works by creating a sealed air chamber between two layers of

glass. Filled with inert Argon gas, the air gap acts as a thermally-insulating cell,

blocking the transfer of heat via conduction. It’s like putting a blanket over the

window!

With effective planning, double-glazing can drastically reduce the transfer of hot

and cold air through your windows to:

Improve the natural comfort of your home

Reduce your need for artificial cooling and heating

Save you money on rising electricity bills

February 2013

*All values given are estimates only. Actual prices will vary according to product selection and specific house design.

ThermalHEART The Ultimate In Window Performance

Double-glazing will reduce the

transfer of heat through glass,

but what about the aluminium

frames?

Exclusive ThermalHEART

windows feature a reinforced

nylon insulator which creates a

thermal break within the

aluminium frame.

Available in both residential

and commercial suites, this

innovative technology offers

32% greater thermal efficiency

than standard double-glazed

windows.

The impact of each building element on thermal performance is highly

complex and best assessed by an expert. There are, however, some basic

design principles to optimize the comfort of your home.

The ideal home is built to run along an East-West axis with living areas

located to the north and bedrooms to the south. Windows can then be

designed as follows:

NORTH:

North-facing windows receive most sunlight in winter and moderate heat in

summer. These windows should be maximized and double-glazed to retain

heat from the winter sun. Retractable shading is a good option to ensure

comfort in summer. Double-glazing is recommended and will offer

performance superior to low-e glass.

SOUTH:

South-facing windows receive no direct sunlight in winter and require only

minimal shading in summer. These windows should be kept fairly small but

normal use of bedroom curtains or blinds will remove the need for

double-glazing.

EAST/WEST:

East and west-facing windows receive the majority of sunlight in summer and

should be kept small and well-shaded. It is recommended that utility rooms

such as the laundry and bathroom be located here so that insulation is not

required. However, bedrooms and living areas to these elevations will re-

quire double-glazing with a layer of low-e glass.

“It is often wrongly assumed that double-glazing is only for cold climates. In fact, the best performance levels … can only be achieved by double-glazing.” - Your Home Technical Manual

Low-E Glass And Double-Glazing The Perfect Partners

Energy-Efficient Building Where Do Windows Fit In?

Low-emissivity (low-e) glass works

on a different principle to

double-glazing. Where

double-glazing works to prevent

heat transfer via conduction,

low-e glass reduces heat transfer

via radiation.

Low-e glass features a coating on

the inside surface which

reduces the amount of heat

being absorbed by the glass and

then radiated into the building.

It also acts to dramatically

reduce UV penetration.

Low-e glass can be laminated,

toughened and processed and is

available in a range of colours.

For ideal thermal performance,

consider including a layer of

low-e glass in your double-glazed

units.

The combination of superior

Insulation with impressive

solar control offers up to 30%

better performance than

standard double-glazing!

2

Why is Open Windows double-glazing so much cheaper?

Many window manufacturers

do NOT offer double-glazing.

Those that do, will have

separate window systems for

single and double-glazing. The

two products look different

and can look odd if combined.

Open Windows’ systems were

developed by a team of

experienced fabricators,

architects and engineers

aiming to create a product

free from the limitations of

the existing window market.

The result was a suite of

windows which can

accommodate single or

double-glazing using the same

window frames!

Double-glazed windows are

instantly cheaper, more

readily available and

aesthetically consistent when

combined with single-glazed

options.

uPVC vs. Aluminium The Double-Glazing Debate

COST

Imported from America and Europe, uPVC windows carry a price tag far

beyond most Australian home-owners. They can be up to three times the

price of aluminium double-glazed windows!

COLOUR SELECTION

Available only in white, uPVC can leave you designing the rest of your home

to match the colour of your windows! Aluminium windows offer hundreds of

powder-coat colours including pearlescent and textured finishes.

DURABILITY

uPVC is a form of treated plastic which can endure for an extended period

without cracking or peeling. Under normal conditions, a quality uPVC window

will offer a lifespan of 20-25 years. Aluminium, however, is naturally resistant

to weathering and can last for up to 50 years!

STRENGTH

uPVC windows are reinforced with steel inserts to achieve the required wind

loading performance. These strengthening bars eventually corrode with the

intrusion of moisture and air. Aluminium offers exceptional natural strength,

supporting large spans of glass with no need for reinforcement. 3

ThermalHEART Thermally-Broken Aluminium Framing